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$ docker logs -f playground-community-keycloak-1 2025-01-10 18:01:45,050 INFO [org.keycloak.quarkus.runtime.storage.infinispan.CacheManagerFactory] (main) Starting Infinispan embedded cache manager 2025-01-10 18:01:45,778 INFO [org.infinispan.CONTAINER] (ForkJoinPool.commonPool-worker-1) ISPN000556: Starting user marshaller 'org.infinispan.commons.marshall.ImmutableProtoStreamMarshaller' 2025-01-10 18:01:46,175 WARN [org.jgroups.stack.Configurator] (ForkJoinPool.commonPool-worker-1) JGRP000014: ThreadPool.thread_dumps_threshold has been deprecated: ignored 2025-01-10 18:01:46,192 INFO [org.infinispan.CLUSTER] (ForkJoinPool.commonPool-worker-1) ISPN000078: Starting JGroups channel `ISPN` with stack `udp` 2025-01-10 18:01:46,194 INFO [org.jgroups.JChannel] (ForkJoinPool.commonPool-worker-1) local_addr: 5500bd9f-c68d-482d-a775-cfb871075247, name: 63d0250041fa-16824 2025-01-10 18:01:46,202 WARN [org.jgroups.protocols.UDP] (ForkJoinPool.commonPool-worker-1) JGRP000015: the send buffer of socket MulticastSocket was set to 1MB, but the OS only allocated 212.99KB 2025-01-10 18:01:46,205 WARN [org.jgroups.protocols.UDP] (ForkJoinPool.commonPool-worker-1) JGRP000015: the receive buffer of socket MulticastSocket was set to 20MB, but the OS only allocated 212.99KB 2025-01-10 18:01:46,206 WARN [org.jgroups.protocols.UDP] (ForkJoinPool.commonPool-worker-1) JGRP000015: the send buffer of socket MulticastSocket was set to 1MB, but the OS only allocated 212.99KB 2025-01-10 18:01:46,206 WARN [org.jgroups.protocols.UDP] (ForkJoinPool.commonPool-worker-1) JGRP000015: the receive buffer of socket MulticastSocket was set to 25MB, but the OS only allocated 212.99KB 2025-01-10 18:01:46,215 INFO [org.jgroups.protocols.FD_SOCK2] (ForkJoinPool.commonPool-worker-1) server listening on *.29320 2025-01-10 18:01:48,037 INFO [org.keycloak.quarkus.runtime.storage.database.liquibase.QuarkusJpaUpdaterProvider] (main) Initializing database schema. Using changelog META-INF/jpa-changelog-master.xml 2025-01-10 18:01:48,228 INFO [org.jgroups.protocols.pbcast.GMS] (ForkJoinPool.commonPool-worker-1) 63d0250041fa-16824: no members discovered after 2008 ms: creating cluster as coordinator 2025-01-10 18:01:48,240 INFO [org.infinispan.CLUSTER] (ForkJoinPool.commonPool-worker-1) ISPN000094: Received new cluster view for channel ISPN: [63d0250041fa-16824|0] (1) [63d0250041fa-16824] 2025-01-10 18:01:48,382 INFO [org.infinispan.CLUSTER] (ForkJoinPool.commonPool-worker-1) ISPN000079: Channel `ISPN` local address is `63d0250041fa-16824`, physical addresses are `[172.21.0.9:44856]` UPDATE SUMMARY Run: 148 Previously run: 0 Filtered out: 0 ------------------------------- Total change sets: 148 2025-01-10 18:01:52,370 WARN [io.agroal.pool] (main) Datasource '<default>': JDBC resources leaked: 1 ResultSet(s) and 0 Statement(s) 2025-01-10 18:01:52,790 INFO [org.keycloak.connections.infinispan.DefaultInfinispanConnectionProviderFactory] (main) Node name: 63d0250041fa-16824, Site name: null 2025-01-10 18:01:52,963 INFO [org.keycloak.broker.provider.AbstractIdentityProviderMapper] (main) Registering class org.keycloak.broker.provider.mappersync.ConfigSyncEventListener 2025-01-10 18:01:53,003 INFO [org.keycloak.exportimport.dir.DirImportProvider] (main) Importing from directory /opt/keycloak/bin/../data/import 2025-01-10 18:01:53,008 INFO [org.keycloak.services] (main) KC-SERVICES0050: Initializing master realm 2025-01-10 18:01:55,437 INFO [org.keycloak.services] (main) KC-SERVICES0030: Full model import requested. Strategy: OVERWRITE_EXISTING 2025-01-10 18:01:58,692 INFO [org.keycloak.exportimport.util.ImportUtils] (main) Realm 'krakend' imported 2025-01-10 18:01:58,773 INFO [org.keycloak.services] (main) KC-SERVICES0032: Import finished successfully 2025-01-10 18:01:58,774 WARN [org.keycloak.services] (main) KC-SERVICES0110: Environment variable 'KEYCLOAK_ADMIN' is deprecated, use 'KC_BOOTSTRAP_ADMIN_USERNAME' instead 2025-01-10 18:01:58,775 WARN [org.keycloak.services] (main) KC-SERVICES0110: Environment variable 'KEYCLOAK_ADMIN_PASSWORD' is deprecated, use 'KC_BOOTSTRAP_ADMIN_PASSWORD' instead 2025-01-10 18:01:58,934 INFO [org.keycloak.services] (main) KC-SERVICES0077: Created temporary admin user with username admin 2025-01-10 18:01:58,992 WARN [io.agroal.pool] (main) Datasource '<default>': JDBC resources leaked: 1 ResultSet(s) and 0 Statement(s) 2025-01-10 18:01:59,144 INFO [io.quarkus] (main) Keycloak 26.0.7 on JVM (powered by Quarkus 3.15.1) started in 18.538s. Listening on: http://0.0.0.0:8080. Management interface listening on http://0.0.0.0:9000. 2025-01-10 18:01:59,145 INFO [io.quarkus] (main) Profile prod activated. 2025-01-10 18:01:59,145 INFO [io.quarkus] (main) Installed features: [agroal, cdi, hibernate-orm, jdbc-h2, keycloak, narayana-jta, opentelemetry, reactive-routes, rest, rest-jackson, smallrye-context-propagation, smallrye-health, vertx]
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Tried to follow the recommendation under the Optimize the Keycloak startup section here: https://www.keycloak.org/server/configuration , but I am not sure we are getting a real benefit from the changes. I would say it takes more or less the same time, between 15 and 25 seconds to have the full startup.
Just leaving a draft here in case someone want to play a little bit trying to optimize it, or just so someone else does not try the same thing.